"i had an operation," said a man to his friend, "and the doctor left a sponge in me."

　　一个男人对他的朋友说：“我动了一次手术，手术后医生把一块海绵忘在我的身体里了。”

　　"that's terrible!" said the friend. "got any pain?"

　　“真是太糟糕了!”朋友说道：“你觉得疼吗?”

　　"no, but i am always thirsty!"

　　“不疼，可是我总感到口渴!”